Wearable speaker system

Abstract

A wearable speaker system includes a bellows tube that holds a weight inside, and a speaker unit where a space inside the speaker unit and a space inside the bellows tube communicate with each other. The bellows tube is accommodated in the enclosure, and both end portions of the bellows tube are fixed to the enclosure.

What is claimed is: 
     
       1. A wearable speaker system provided with an enclosure, comprising:
 a bellows tube that holds a weight member inside; and 
 a speaker unit where a space inside the speaker unit and a space inside the bellows tube communicate with each other, 
 wherein the bellows tube is accommodated in the enclosure, and both end portions of the bellows tube are fixed to the enclosure, 
 the weight member has a cylindrical shape, and is held inside of the bellows tube with a side face of the weight member and an inner face of the bellows tube coming into contact, 
 an opening portion is provided in the weight member in an axial direction, and a duct tube that is tube-shaped passes through the opening portion, and 
 one or more fixing portions for fixing the weight member are provided on a side face of the duct tube in a radial direction, 
 wherein a pair of holding portions that hold the weight member is provided on the inner face of the bellows tube such that a spacing between the holding portions in the axial direction of the bellows tube is identical with a length of the weight member in the axial direction. 
 
     
     
       2. The wearable speaker system according to  claim 1 ,
 wherein a face of the one or more fixing portions that comes into contact with the weight member has a recessed shape that curves more in a direction of contact with the weight member the farther on an outer side in the radial direction. 
 
     
     
       3. The wearable speaker system according to  claim 2 ,
 wherein the one or more fixing portions are a pair of fixing portions provided on the side face of the duct tube such that a spacing between the fixing portions in the axial direction of the duct tube is identical with the length of the weight member in the axial direction, and one fixing portion of the pair of fixing portions has a tapered shape of which a length in the radial direction increases the further along a direction toward an other fixing portion. 
 
     
     
       4. The wearable speaker system according to  claim 3 ,
 wherein diameters of the both end portions of the bellows tube are different from each other, and a diameter of one fixing portion of the pair of fixing portions of the duct tube is intermediate between the diameters of the both end portions. 
 
     
     
       5. The wearable speaker system according to  claim 1 ,
 wherein one holding portion of the pair of holding portions has a greater length in the radial direction than an other holding portion.